/*
 * Copyright (C) 2007 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.text;

import com.example.android.apis.R;

import android.app.Activity;
import android.graphics.Typeface;
import android.os.Bundle;
import android.text.Html;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.method.LinkMovementMethod;
import android.text.style.StyleSpan;
import android.text.style.URLSpan;
import android.widget.TextView;

public class Link extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setContentView(R.layout.link);

		// text1 shows the android:autoLink property, which
		// automatically linkifies things like URLs and phone numbers
		// found in the text. No java code is needed to make this
		// work.

		// text2 has links specified by putting <a> tags in the string
		// resource. By default these links will appear but not
		// respond to user input. To make them active, you need to
		// call setMovementMethod() on the TextView object.

		TextView t2 = (TextView) findViewById(R.id.text2);
		t2.setMovementMethod(LinkMovementMethod.getInstance());

		// text3 shows creating text with links from HTML in the Java
		// code, rather than from a string resource. Note that for a
		// fixed string, using a (localizable) resource as shown above
		// is usually a better way to go; this example is intended to
		// illustrate how you might display text that came from a
		// dynamic source (eg, the network).

		TextView t3 = (TextView) findViewById(R.id.text3);
		t3.setText(Html
				.fromHtml("<b>text3: Constructed from HTML programmatically.</b>  Text with a "
						+ "<a href=\"http://www.google.com\">link</a> "
						+ "created in the Java source code using HTML."));
		t3.setMovementMethod(LinkMovementMethod.getInstance());

		// text4 illustrates constructing a styled string containing a
		// link without using HTML at all. Again, for a fixed string
		// you should probably be using a string resource, not a
		// hardcoded value.

		SpannableString ss = new SpannableString(
				"text4: Manually created spans. Click here to dial the phone.");

		ss.setSpan(new StyleSpan(Typeface.BOLD), 0, 30,
				Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
		ss.setSpan(new URLSpan("tel:4155551212"), 31 + 6, 31 + 10,
				Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

		TextView t4 = (TextView) findViewById(R.id.text4);
		t4.setText(ss);
		t4.setMovementMethod(LinkMovementMethod.getInstance());
	}
}
